On 4 February 2026, in the middle of the Chinese New Year holiday, a distributor from the Netherlands emailed us a fully custom red light therapy panel request. Our team responded during the holiday, and by August 2026 the project had passed a factory audit and moved into mass production.
| Client | Distributor, the Netherlands (with a China office) |
| Source | Google search inquiry |
| Product | Resty® Mars 400, 60-LED red light therapy panel |
| Quantity | 5,500 units |
| Status | Factory audit passed, mass production delivered |
▎The challenge
The client needed a fully custom design: dual wavelengths of 660nm and 850nm, wired AC power, one-button operation, and a 1.5-metre power cable. The timeline was tight. Samples were required within 2–3 weeks after the Chinese New Year holiday.
▎How we worked together
1. Holiday response: our sales and engineering teams sent a quotation within 3 days, despite the holiday.
2. Exterior design: the design was completed within 3 days after the holiday and approved by the client.
3. First sample in 2 weeks: it did not meet our standard. The light was uneven and not bright enough.
4. Samples 2 to 4: our engineers worked extra hours, adjusting the design after each round.
5. Sample 5 approved: even light output and stable performance. PCB and full assembly were completed in 3 weeks in total, and the sample was shipped.
6. 5 months of client testing: strict functional and light-output testing.
7. August 2026: the factory audit was passed, the contract was signed, and mass production began.
▎Technical specifications
| Item | Specification |
| Product name | Resty® Mars 400 red light therapy panel |
| Light type | Red light (R) + near-infrared (NIR) |
| Wavelengths | 660nm (red) + 850nm (near-infrared) |
| Technology | Dual-wavelength LED light therapy |
| Benefits | Skin rejuvenation, collagen support, pain relief, muscle recovery, better sleep |
| Treatment areas | Face, neck, body |
| Timer | Yes |
| Operation | One-button start |
| Power | Wired, standard AC power, 1.5 m cable |
▎Why the client chose us